how much does l-carnitine cost NOW Foods Supplements, 1,000 mg, Purest Form, Amino Acid, Fitness Support*, 100 Tablets : Health & Household Nutricost L-Carnitine Tartrate Supplement Powder
Description
Acidity or Alkalinity Dissolve 1.0g of the substance in 20mL of water, and determine the pH as directed under the method for pH determination (General Chapter 0631)

For pure endurance performance and fat metabolism, L-carnitine might be the better choice

Brown GC, Camacho M, Williams-Gray CH
International journal of sports medicine , 17 (5), 320324
3.3 Mitochondrial integrity Recently, studies have reported that ketone bodies play a role in maintaining mitochondrial integrity in heart disease (Snorek et al., 2012)

(PubMed) Andersson M, Aeberli I, Wust N, et al